Observation 202339: Porpidia albocaerulescens (Wulfen) Hertel & Knoph
When: 2015-04-05
No herbarium specimen

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Nice sequence
By: Jason Hollinger (jason)
2015-04-05 19:34:36 PDT (-0700)

And don’t forget the snails: they’ve been busy on some of these photos!

Death of a beauty
By: Andrew Khitsun (Andrew)
2015-04-05 18:44:38 PDT (-0700)

The first image might surprise the viewer – it doesn’t look anything like the species listed. While I have plenty of images of this species in its prime, this collection aims to show what happens when the thallii start to age, weather and eventually die: they get populated by other lichen, eaten by worms/snails or just fade away leaving behind only prothallus. In fact, there are light-colored rings scattered all over the boulders at Devil’s Lake that are prothallii from this species and also Aspicilia caesiocinerea – “ghost circles” as I call them.

Created: 2015-04-05 18:18:32 PDT (-0700)
Last modified: 2015-04-05 18:39:18 PDT (-0700)
Viewed: 34 times, last viewed: 2015-12-25 22:28:10 PST (-0800)
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